Which intervention technique is more effective in reducing public speaking anxiety in children aged 9 – 12 years, exposure or restructuring cognitions?

On December 11th, Andreea Geambasu succesfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Andreea on this great result.

In recent years, the use of primary data in terrorism research has increased. In order to maximise the benefits of this trend, we want to encourage terrorism scholars to implement open science practices more systematically. This article therefore presents different avenues towards open and reproducible…

Solar energy harnessed by plants and algae has great potential to be converted into biofuels for future generations.

On the 16th of June Patrtick Harrison successfully defended a doctoral thesis and graduated.

This dissertation provides an up to date description of the Indo European lexical stock of Armenian (ca. 500 entries) with systematic inclusion of unused data that are found in Armenian dialects.

What does the daily life of those who travelled to Syria to join jihadist groups look like? Destination Syria, a new ISGA report, provides answers to this question

Promotor: A. Kros

This thesis explores how electron paramagnetic resonance (EPR) spectroscopy can be used to investigate key biochemical processes.

How should we address our colonial heritage? And how digital and accessible are our collections? Outgoing State Secretary Fleur Gräper spoke with researchers and heritage specialists about this on 25 January.

The starting point for this research project is the notion that the human brain is susceptible to all kinds of fallacies and biases that affect our perceptions and influence our reasoning outside of our conscious awareness. Indeed, most people think they are merely observing facts and that they process…

Immerse yourself: read books, listen to podcasts and watch films about racism, discrimination and the colonial past.

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Promotor: M.A.G.J. Orrit

Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).

A difficulty of studies on chemical kinetics are the reaction time scales and detection of their intermediates.

Impressions by Martin Küster, Master of Arts.

In this thesis, I study 1) metabolic alterations in tuberculosis related to wasting syndrome in human patients as well as in rodent and fish animal models. 2) effects of the mutation of the leptin gene on cachexia and diabetes in rodent and zebrafish animal models.

Can SMILE, our multi-component intervention, which combines cognitive-behavioural therapy for insomnia, mindfulness, stress, and lifestyle components, improve sleep quality? Can it also improve mood and quality of life and prevent depression and anxiety in the long term?

In this thesis we have discussed several parameters that affect the electrochemical conversion of enviromentaly harmful molecules such as nitrates and carbon dioxide to more valuable and less deleterious compounds, in order to cast light onto the mechanism of the reaction to achieve an efficient and…

On 10 June 2021, Merinda Stewart defended her thesis 'Freedom of Overflight: A Study of Coastal State Jurisdiction in International Airspace'. The doctoral research was supervised by Prof. P.M.J. Mendes de Leon en Prof. J.J. Rijpma.

Promotor: M. Ubbink, Co-promotor: G. Siegal

With the recent rise and fall of IS, academics and policy makers around the world are expressing concerns about the fate of children of former foreign fighters. Will they follow in their parents’ footsteps? In this paper, Layla van Wieringen, Daan Weggemans and Marieke Liem argue that in light of this…

How do educational philosophies, discourses and practices spread around the globe, and how are they transformed and adapted locally?

The main aim of my Ph.D. thesis is to further explore the value of using early developing zebrafish larvae (up to 5 dpf) as a model to study anxiety-like behaviour and their pharmacological modulation with drugs.

This November, Leiden Jewish Studies Network has presented the Best Thesis in Jewish Studies award to a highly talented Leiden graduate, Lotte-Sofie Groenendijk, and awarded an honourable mention to Nasreen Javanjoo.

Vegetarian cafés/ Vegetarische cafés

On Friday 7 March 2025 Adam Knight successfully defended a doctoral thesis and graduated.

On Wednesday 14 May 2025 Remzi Çakırlar successfully defended a doctoral thesis and graduated.

How can we develop new chemical biology tools and approaches to understand and interfere with glucosylceramide metabolism in relation to Gaucher disease?

Whilst government’s ability to design ‘context-specific’ regional innovation policy is generally assumed to depend on the region’s decision-making power, the aim of this study is to investigate how regional government matters. In order to open up the black box of policy design, the study develops a…

The Board of Governors of Leiden University has confirmed the appointment of Professor André Gerrits (Institute for History, currently in the field of Russian Politics and History) to the field of International Studies and Global Politics, commencing October 1st 2015.

Promotor: Prof.dr. H.V.J. Linnartz, Co-Promotores: H.M. Cuppen, S. Ioppolo

The urban graveyard presents several studies in which the results of older archaeological and osteoarchaeological research are compared to more recent excavation data from several Dutch, Belgian and Danish cities and towns.

On the 26th of September, Cosmas Rai Amenorvi successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Cosmas on this achievement!